Christopher coebit



CHRISTOPHER CORBI'I, OF CHRISTIANA., PENNSYLVANIA`l Letters PatentNo. 75,865, elated March 24, 1868.

IMPROVED MILL-STEP.

"Gite rlgehnlt mime te in time tetttrs ttent rmt mating met et tige time TOV ALL lWHOM IT MAY CONCERN:

Be it known that I, CHRISTOPHER CORBIT, of Christiana, in the county of Lancaster, and State of Pennsylvania, haveinvented an Improved Mill-Step; and I do hereby declare that the following is a full and exact descriptiontherecf, reference being had to the accompanying drawings, and to the letters of reference marked thereon. r

The nature of my invention consistsiin placing ina box, around the toe of a spindle, a. series of wedgeshaped movable followers, kept to their places by means of screws, the direction of which is set at an angle with a line running te the centre of the spindle, thus avoiding the strain on the thread of said screws consequent upon the ,usual mode of `setting them.

To enable others skilled in the art to make and use my invention, I will proceed to describe-its construction and operation.'

, I placelon a bed-plate, A A A. A, of the proper size, and composed of cast iron, a box, B B B B, cast with it, and in this box I place four followers, C C C, iig. 1. These followers are cut out on the side next the spindle, so as to t it, While their opposite side is formed like a wedge, this wedge-shaped side of the followers. being placed against the sides ofthe box B B, Sto., andpushed forward by the screws a a a a, necessarily carries their inside circle (impinging against the toe of the spindle) directly towards 'the centre, thus transferring the strain (which, in other steps of 4the kind, is on the thread of the screw) to the side of the box B B, tbc. Through the hed-plateA A, in its centre, is left a round opening for the passage ofthe movable piece G, and on the top of this piece I place a steel plate, D, on which the toe of the spindle rests. AThe opening in the bedplate A, where the movable piece G passes through, is recessed, as seen at e e, g. 2, for the introduction of packing to preventthe escape of oil. V

, From this description of my invention, it will be seen that when the toe of the spindle wears away, or the followers become less by. use, 'they can be brought tight against th spindle, and kept there with verv little strain on the thread of the screws.

I am aware that movable followers,kept in their places by means of screws, the direction of said screws being towards the centre of the spindle, are not new; I therefore wish it to be understoodthat I make no claim to this arrangement.

I Iclaim placing around the 'toe of a spindle ascriesof wedge-shaped followers, C C C C, constructed with boxes B B,screws a a ma, movable piece G, steel plate D, and operatingv as described, 4in combination with the recess e e, in the plate A A, all arranged for the purpose herein specified.

CHRISTOPHER CORBIT.

Witness es Cms. SHARPLEss, WILLIAM REED. 

